Improvement in compositions for roofing



UNITED STATES PATENT OEEicE.

U. A. BREMNER, OF GOSHEN, NEW YORK.

IMPROVEMENT IN COMPOSITIONS FOR ROOFING.

Specification forming part of Letters Patent No. 22,343, dated December 21, 1858.

To all whom it may concern:

Be it known that I, G. A. BREMNER, of Goshen, in the county of Orange and- State of New York, have invented a new and Improved Composition for the Protection of Roofs from the Weather; and I do hereby declare that the following is a full, clear, and exact description of the same.

To make the composition I take eighteen gallons coal-tar, two gallons rosin-oil, twogallons i ndia-rubber solution, two gallons shellac solution, two gallons linseed-oil, and place the whole, in a kettle or suitable vessel, over a moderate fire and stir them well together till the mixture has its component parts well incorporated together. I also take the following: fitteen pounds dry marl, three pounds alum, two pounds litharge, three pounds ocher, one pound borax, all pulverized, and mix them well together in a dry state. To every gallon of the fluid mixture, while still in its heated state, I add one quart of the pulverized mixture, which should be perfectly dry, and stir the whole together till as perfect a mixture as possible is produced. The composition thus produced is in condition for use, either in a warm or cold state, and is to be applied to the roof with a brush, one or more coats being used, as may be thought desirable, one coat, however, being always allowed to set perfectly before another is applied. The composition may he applied to any roof, but it is preferable to apply it outside a covering of canvas or other cloth.

The indiarubber solution hereinabove specified is made by dissolving the india-rubber' in turpentine in the proportion of six ounces of the former to every quart of the latter. The shellac solution is made by dissohing shellac in alcohol in the proportion of one pound of the former to every quart of the latter. The marl before being pulverized should be well dried by baking. The action of the marl in the composition is to give it the necessary body and hardness without producing on the other ingredients the destructive action common to other substances employed for a similar purpose in compositions formed in part of the snne substances.

What I claim as new in the above composition, and desire to secure by Letters Patent,

The composition consisting of marl and th other substances herein specified, combined and compounded in about the proportions and in the manner substantially as herein set forth.

0. A. BREMNER.

Witnesses:

GEo. W. MILLsPAUeH, E. E1). VAN DUzER. 

